IT1273676B - Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda,con potenza di ricezione equalizzata - Google Patents

Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda,con potenza di ricezione equalizzata

Info

Publication number
IT1273676B
IT1273676B ITMI941573A ITMI941573A IT1273676B IT 1273676 B IT1273676 B IT 1273676B IT MI941573 A ITMI941573 A IT MI941573A IT MI941573 A ITMI941573 A IT MI941573A IT 1273676 B IT1273676 B IT 1273676B
Authority
IT
Italy
Prior art keywords
optical
telecommunication system
signals
multiplation
line
Prior art date
Application number
ITMI941573A
Other languages
English (en)
Italian (it)
Inventor
Fausto Meli
Stefano Piciaccia
Original Assignee
Pirelli Cavi Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pirelli Cavi Spa filed Critical Pirelli Cavi Spa
Publication of ITMI941573A0 publication Critical patent/ITMI941573A0/it
Priority to ITMI941573A priority Critical patent/IT1273676B/it
Priority to NZ272564A priority patent/NZ272564A/en
Priority to AT95111501T priority patent/ATE255302T1/de
Priority to EP95111501A priority patent/EP0695049B1/en
Priority to DE69532178T priority patent/DE69532178T2/de
Priority to US08/506,086 priority patent/US5852510A/en
Priority to NO952929A priority patent/NO952929L/no
Priority to CN95108635A priority patent/CN1117679A/zh
Priority to FI953544A priority patent/FI953544A/fi
Priority to TW084107656A priority patent/TW270265B/zh
Priority to PE1995274552A priority patent/PE16097A1/es
Priority to RU95113209/09A priority patent/RU2159509C2/ru
Priority to HU9502215A priority patent/HU218631B/hu
Priority to BR9502403A priority patent/BR9502403A/pt
Priority to KR1019950022091A priority patent/KR960006371A/ko
Priority to CZ951922A priority patent/CZ192295A3/cs
Priority to AU27184/95A priority patent/AU710198B2/en
Priority to SK938-95A priority patent/SK93895A3/sk
Priority to CA002154641A priority patent/CA2154641C/en
Priority to PL95309766A priority patent/PL178061B1/pl
Priority to JP7189468A priority patent/JPH08195721A/ja
Publication of ITMI941573A1 publication Critical patent/ITMI941573A1/it
Application granted granted Critical
Publication of IT1273676B publication Critical patent/IT1273676B/it
Priority to US09/188,466 priority patent/US6025954A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • H04J14/02212—Power control, e.g. to keep the total optical power constant by addition of a dummy signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • H04J14/02216—Power control, e.g. to keep the total optical power constant by gain equalization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/03—WDM arrangements
    • H04J14/0305—WDM arrangements in end terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Locating Faults (AREA)
  • Transmitters (AREA)
  • Small-Scale Networks (AREA)
ITMI941573A 1994-07-25 1994-07-25 Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda,con potenza di ricezione equalizzata IT1273676B (it)

Priority Applications (22)

Application Number Priority Date Filing Date Title
ITMI941573A IT1273676B (it) 1994-07-25 1994-07-25 Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda,con potenza di ricezione equalizzata
NZ272564A NZ272564A (en) 1994-07-25 1995-07-13 Multiwavelength doped optical fibre amplifier and communication system with wavelength division multiplexing
AT95111501T ATE255302T1 (de) 1994-07-25 1995-07-21 Verstärktes telekommunikationssystem für wellenlängenmultiplexübertragung mit ausgleich der empfangenen leistung
EP95111501A EP0695049B1 (en) 1994-07-25 1995-07-21 Amplified telecommunication system for wavelength-division multiplexing transmissions, having an equalized reception power
DE69532178T DE69532178T2 (de) 1994-07-25 1995-07-21 Verstärktes Telekommunikationssystem für Wellenlängenmultiplexübertragung mit Ausgleich der empfangenen Leistung
PE1995274552A PE16097A1 (es) 1994-07-25 1995-07-24 Sistema de telecomunicacion amplificado para transmisiones en multiplex por division de longitud de onda, teniendo una potencia de recepcion ecualizada
NO952929A NO952929L (no) 1994-07-25 1995-07-24 Forsterket telekommunikasjonssystem for bölgelengdedelt multipleksoverföring, og som har utjevnet mottakningseffekt
CN95108635A CN1117679A (zh) 1994-07-25 1995-07-24 具有均衡接收功率的波分多路复用传输放大通信系统
FI953544A FI953544A (fi) 1994-07-25 1995-07-24 Vahvistava tietoliikennejärjestelmä aallonpituusmultipleksoituja lähetyksiä varten, jossa vastaanottoteho ekvalisoidaan
TW084107656A TW270265B (es) 1994-07-25 1995-07-24
US08/506,086 US5852510A (en) 1994-07-25 1995-07-24 Amplified telecommunication system for wavelength-division multiplexing transmission having an equalized reception power
RU95113209/09A RU2159509C2 (ru) 1994-07-25 1995-07-24 Оптическая система связи, волоконно-оптический усилитель и способ определения длины оптического активного волокна
HU9502215A HU218631B (hu) 1994-07-25 1995-07-24 Optikai telekommunikációs rendszer, optikai erősítő, valamint eljárás az optikai erősítő aktív szálja hosszúságának a meghatározására
KR1019950022091A KR960006371A (ko) 1994-07-25 1995-07-25 등화된 수신전력을 갖춘 파장분할 멀티플렉싱 전송을 위한 증폭된 원거리통신 시스템
BR9502403A BR9502403A (pt) 1994-07-25 1995-07-25 Sistema de telecomunicaçao amplificada para transmissoes multiplexadas por divisao de comprimento de onda com potência de recepçao equalizada
CZ951922A CZ192295A3 (en) 1994-07-25 1995-07-25 Optical telecommunication system, optical-fiber repeater and method of determining optimum length of its active fiber
AU27184/95A AU710198B2 (en) 1994-07-25 1995-07-25 Amplified telecommunication system for wavelength-division multiplexing transmissions, having an equalized reception power
SK938-95A SK93895A3 (en) 1994-07-25 1995-07-25 Optical telecomunicating system
CA002154641A CA2154641C (en) 1994-07-25 1995-07-25 Amplified telecommunication system for wavelength-division multiplexing transmissions, having an equalized reception power
PL95309766A PL178061B1 (pl) 1994-07-25 1995-07-25 Sposób i system telekomunikacyjny ze wzmacnianiem, do przesyłania sygnału multipleksowanego z podziałem długości fal, mający skorygowaną moc odbioru
JP7189468A JPH08195721A (ja) 1994-07-25 1995-07-25 等化された受信パワーを持つ波長分割多重伝送用増幅通信システム
US09/188,466 US6025954A (en) 1994-07-25 1998-11-09 Amplified telecommunication system for wavelength-division multiplexing transmissions, having an equalized reception power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI941573A IT1273676B (it) 1994-07-25 1994-07-25 Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda,con potenza di ricezione equalizzata

Publications (3)

Publication Number Publication Date
ITMI941573A0 ITMI941573A0 (it) 1994-07-25
ITMI941573A1 ITMI941573A1 (it) 1996-01-25
IT1273676B true IT1273676B (it) 1997-07-09

Family

ID=11369353

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI941573A IT1273676B (it) 1994-07-25 1994-07-25 Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda,con potenza di ricezione equalizzata

Country Status (21)

Country Link
US (2) US5852510A (es)
EP (1) EP0695049B1 (es)
JP (1) JPH08195721A (es)
KR (1) KR960006371A (es)
CN (1) CN1117679A (es)
AT (1) ATE255302T1 (es)
AU (1) AU710198B2 (es)
BR (1) BR9502403A (es)
CA (1) CA2154641C (es)
CZ (1) CZ192295A3 (es)
DE (1) DE69532178T2 (es)
FI (1) FI953544A (es)
HU (1) HU218631B (es)
IT (1) IT1273676B (es)
NO (1) NO952929L (es)
NZ (1) NZ272564A (es)
PE (1) PE16097A1 (es)
PL (1) PL178061B1 (es)
RU (1) RU2159509C2 (es)
SK (1) SK93895A3 (es)
TW (1) TW270265B (es)

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JPH09116492A (ja) * 1995-10-18 1997-05-02 Nec Corp 波長多重光増幅中継伝送方法およびその装置
JPH10164020A (ja) * 1996-11-29 1998-06-19 Nec Corp 光波長多重中継伝送システムおよびその光ｓ／ｎ比等化方法
US6914717B1 (en) 1996-12-23 2005-07-05 Xtera Communications, Inc. Multiple wavelength pumping of raman amplifier stages
US6052393A (en) 1996-12-23 2000-04-18 The Regents Of The University Of Michigan Broadband Sagnac Raman amplifiers and cascade lasers
JPH10276172A (ja) * 1997-03-28 1998-10-13 Kokusai Denshin Denwa Co Ltd <Kdd> 波長分割光処理装置およびこの波長分割光処理装置を用いた光通信伝送路
EP0883217B1 (en) * 1997-06-06 2003-10-29 Corning Photonic Technologies Inc. Optical fiber telecommunication system
CA2299441A1 (en) 1997-08-01 1999-02-11 Gianpaolo Barozzi Multi-band amplification system for dense wavelength division multiplexing
JPH11112068A (ja) * 1997-10-06 1999-04-23 Fujitsu Ltd 光信号伝送システム及び光信号伝送方法
JP3638777B2 (ja) 1998-02-04 2005-04-13 富士通株式会社 利得等化のための方法並びに該方法の実施に使用する装置及びシステム
US6597493B2 (en) 2000-05-05 2003-07-22 The Regents Of The University Of Michigan Nonlinear fiber amplifiers used for a 1430-1530nm low-loss window in optical fibers
US6574037B2 (en) 1998-06-16 2003-06-03 Xtera Communications, Inc. All band amplifier
US6321016B1 (en) * 1998-06-19 2001-11-20 Pirelli Cavi E Sistemi S.P.A. Optical fiber having low non-linearity for WDM transmission
US6545799B1 (en) 1998-09-02 2003-04-08 Corning Incorporated Method and apparatus for optical system link control
US6606178B1 (en) 1999-09-23 2003-08-12 Corning Incorporated Method and system to reduce FWM penalty in NRZ WDM systems
US6421167B1 (en) 2000-03-03 2002-07-16 General Dynamics Advanced Technology Systems, Inc. Multiple function bandwidth management systems
US6381063B1 (en) * 2000-03-16 2002-04-30 Corning Incorporated Long band optical amplifier
US6437906B1 (en) 2000-11-22 2002-08-20 Cisco Technology, Inc. All-optical gain controlled L-band EDFA structure with reduced four-wave mixing cross-talk
US6961522B1 (en) 2000-11-22 2005-11-01 Cisco Technology, Inc. Automatic raman gain and tilt control for ultra-long-distance dense WDM optical communication system
US6810214B2 (en) 2001-03-16 2004-10-26 Xtera Communications, Inc. Method and system for reducing degradation of optical signal to noise ratio
US6532101B2 (en) 2001-03-16 2003-03-11 Xtera Communications, Inc. System and method for wide band Raman amplification
US6941079B1 (en) 2001-05-24 2005-09-06 Cisco Technology, Inc. Optical demultiplexer with multi-channel power control and tilt compensation
US6697193B1 (en) 2001-06-06 2004-02-24 Cisco Technology, Inc. Shared variable gain amplifier for WDM channel equalization
US6587259B2 (en) 2001-07-27 2003-07-01 Xtera Communications, Inc. System and method for controlling noise figure
US6757099B2 (en) 2001-08-15 2004-06-29 Pts Corporation Optical power transient control scheme for EDFA amplifiers
US6594071B1 (en) 2001-10-02 2003-07-15 Xtera Communications, Inc. Method and apparatus for amplifier control
US20030067670A1 (en) * 2001-10-04 2003-04-10 Lacra Pavel Dynamic optical spectral control scheme for optical amplifier sites
CN1330119C (zh) * 2001-11-11 2007-08-01 华为技术有限公司 一种用于高速传输系统的光信号调节方法及光传输系统
US6621626B1 (en) 2001-12-05 2003-09-16 Cisco Technology, Inc. Modular optical amplifier structure for highly dense interleaved WDM systems
US7233432B2 (en) * 2001-12-20 2007-06-19 Xtera Communications, Inc. Pre-emphasized optical communication
US6819479B1 (en) 2001-12-20 2004-11-16 Xtera Communications, Inc. Optical amplification using launched signal powers selected as a function of a noise figure
US7197245B1 (en) 2002-03-15 2007-03-27 Xtera Communications, Inc. System and method for managing system margin
US6819478B1 (en) 2002-03-15 2004-11-16 Xtera Communications, Inc. Fiber optic transmission system with low cost transmitter compensation
US6778321B1 (en) 2002-03-15 2004-08-17 Xtera Communications, Inc. Fiber optic transmission system for a metropolitan area network
US6825973B1 (en) 2002-03-15 2004-11-30 Xtera Communications, Inc. Reducing leading edge transients using co-propagating pumps
KR100458678B1 (ko) * 2002-03-20 2004-12-03 주식회사 럭스퍼트 이득제공 방식의 광파워 평탄화기
US7054059B1 (en) 2003-05-14 2006-05-30 Cisco Technoloy, Inc. Lumped Raman amplification structure for very wideband applications
EP2475121A1 (en) * 2011-01-10 2012-07-11 Ntt Docomo, Inc. Communication system and method for directly transmitting signals between nodes of a communication system
CN104683036B (zh) * 2015-03-23 2017-07-28 东南大学 一种多源激光二元相位调制与解调装置及方法
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WO2020255362A1 (ja) * 2019-06-21 2020-12-24 日本電信電話株式会社 光アンプ、受信機、光伝送システム及び光アンプ設計方法

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Also Published As

Publication number Publication date
US6025954A (en) 2000-02-15
EP0695049A1 (en) 1996-01-31
EP0695049B1 (en) 2003-11-26
CA2154641C (en) 2005-03-15
CN1117679A (zh) 1996-02-28
PE16097A1 (es) 1997-05-12
PL309766A1 (en) 1996-02-05
TW270265B (es) 1996-02-11
AU2718495A (en) 1996-02-08
ITMI941573A1 (it) 1996-01-25
ATE255302T1 (de) 2003-12-15
PL178061B1 (pl) 2000-02-29
NO952929D0 (no) 1995-07-24
NO952929L (no) 1996-01-26
DE69532178D1 (de) 2004-01-08
CA2154641A1 (en) 1996-01-26
JPH08195721A (ja) 1996-07-30
SK93895A3 (en) 1996-02-07
KR960006371A (ko) 1996-02-23
NZ272564A (en) 1998-06-26
CZ192295A3 (en) 1996-02-14
AU710198B2 (en) 1999-09-16
RU2159509C2 (ru) 2000-11-20
FI953544A (fi) 1996-01-26
HUT72807A (en) 1996-05-28
DE69532178T2 (de) 2004-08-12
BR9502403A (pt) 1996-06-25
US5852510A (en) 1998-12-22
ITMI941573A0 (it) 1994-07-25
HU9502215D0 (en) 1995-09-28
HU218631B (hu) 2000-10-28
FI953544A0 (fi) 1995-07-24

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Effective date: 19970729